WO2012097648A1 - 多功能电能计量装置接线检测仪 - Google Patents

多功能电能计量装置接线检测仪 Download PDF

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Publication number
WO2012097648A1
WO2012097648A1 PCT/CN2011/083167 CN2011083167W WO2012097648A1 WO 2012097648 A1 WO2012097648 A1 WO 2012097648A1 CN 2011083167 W CN2011083167 W CN 2011083167W WO 2012097648 A1 WO2012097648 A1 WO 2012097648A1
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Prior art keywords
electric energy
energy metering
metering device
sockets
electrode
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PCT/CN2011/083167
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English (en)
French (fr)
Inventor
常诚
吕志良
丁苏标
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安徽省电力公司蚌埠供电公司
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Priority to CA2784338A priority Critical patent/CA2784338A1/en
Publication of WO2012097648A1 publication Critical patent/WO2012097648A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current

Definitions

  • the present invention relates to the field of electrical appliance detection, and more particularly to a multi-function electrical energy metering device wiring detector.
  • the energy metering device includes an electric energy meter, a current transformer, a voltage transformer, a secondary line, and a connection terminal.
  • the energy metering device if the current, the polarity of the voltage transformer is incorrect, or the fuse is blown once, or the secondary connecting wire is loose, or the wiring is wrong, it will affect the correct metering of the energy metering device. For some large users with large power consumption, the difference between the first line and the power of several thousand or even millions of kilowatt hours will cause measurement disputes and bring economic losses to the power supply enterprises.
  • the implementation of the above work adopts the traditional Checking the line method, the traditional line-checking method not only needs to carry a lot of equipment, but also has a small space in the metering rejection or metering box, and there are many intermediate conversions, which brings difficulties to the testing and disconnection of the energy metering device, which is not only a waste of time, but also The work efficiency is low and the accuracy is difficult to guarantee.
  • Existing phase voltammeters cannot solve the above problems.
  • the object of the present invention is to provide a multi-function electric energy metering device wiring detector, which has the function of a phase voltammeter, and can quickly check and judge the wiring of the metering circuit of the electric energy metering device.
  • a multi-function electric energy metering device wiring detector which comprises a phase voltammeter, a DC power supply is arranged in the case, and a pair of test sockets and a pair of electrode sockets are arranged on the watch case.
  • One pole of the DC power source is connected to one electrode socket, and the other pole is connected to the other electrode socket through a switch, and the switch is fixed on the watch case, and the two test sockets are respectively connected to the two ends of the changeover switch of the phase voltammeter;
  • the wiring detector is also equipped with test leads for each test socket and electrode socket.
  • the multi-function electric energy metering device wiring detector provided by the invention has a phase The volt-ampere meter function, when it is necessary to check and judge the electric energy metering circuit, connect the test line matched with each test socket and the electrode socket to the corresponding socket, and then use the phase volt-ampere meter to measure the electric energy measuring circuit. Check and judge.
  • the structure of the invention is reasonable and reliable, and the process of testing and disconnecting the electric energy metering device can be greatly simplified, and the inspection and judgment are accurate.
  • FIG. 1 is a schematic structural view of Embodiment 1 of the present invention.
  • Figure 2 Figure 1 is an A-direction view
  • Figure 3 is a circuit diagram of the connection of the DC power supply to the electrode socket
  • Figure 4 is a schematic view of the test socket connected to the transfer switch of the phase voltammeter
  • Figure 5 is a schematic view showing the use of Example 2 of the present invention.
  • the multi-function electric energy metering device wiring detector comprises a phase voltammetry meter 1 which is the same as the existing product, and a DC power source 11 is arranged in the watch case, and a pair of test sockets are arranged on the watch case, that is, the test socket 4 and the test
  • the socket 5 is further provided with a pair of electrode sockets, that is, an electrode socket 6 and an electrode socket 7.
  • the negative pole of the DC power source 11 is connected to an electrode socket 7, and the anode is connected to the other electrode socket 6 through the switch 10, and the switch 10 Fixed to the case.
  • test socket 4 and the test socket 5 are respectively connected to the two ends of the transfer switch lb of the phase voltammeter, wherein one test socket 4 is connected to the positive terminal of the changeover switch lb, and the other test socket 5 and the negative terminal of the changeover switch lb are connected. Docked.
  • the wiring detector is also equipped with a test line, a test line 3, a test line 4, and a test line 5, which are respectively matched with the test sockets and the electrode sockets.
  • the switch 10 is a normally open touch switch.
  • the DC power source 11 is a battery having a voltage of 9 volts.
  • the use case is a measurement of a current loop of a three-phase four-wire low-voltage energy metering device, and the specific measurement method is:
  • test lines 8 For group A component measurement, turn the conversion switch lb to the 0.05mA position and place one of the test lines 8
  • the end is inserted into an electrode socket 6 connected to the positive pole of the DC power source, and the other end is connected to the primary power supply side of the A-phase current transformer, and one end of the other test line 9 is inserted into the electrode socket 7 connected to the negative pole of the DC power supply.
  • the other end is connected to the primary load side of the A-phase current transformer, and a test line 3 - end is inserted into the test socket 4 which is connected with the positive terminal of the changeover switch 1b, and the other end is connected to the metering device junction box A phase current input end button.
  • test lines 2, 3 pass the measured signal through the phase voltammeter switch, the measuring circuit and the converter, and input it to the liquid crystal display la of the phase voltammeter, and observe the liquid crystal display la, and the measured display is displayed thereon.
  • the instantaneous induced current direction is the same as the correct flow direction of the measured A-phase current transformer current, then the A-phase current loop is wired correctly, otherwise the A-phase current loop is incorrectly wired.
  • the measurement methods of the B and C components are the same as those of the A component.
  • the use case is a measurement of a voltage loop of a three-phase four-wire low-voltage energy metering device, and the specific measurement method is:
  • test line 8 For component A measurement, turn the conversion switch lb to the DC 10V position, insert one end of one test line 8 into the electrode socket 6 connected to the positive pole of the DC power supply, and connect the other end to the A-phase current transformer on the primary power supply side. Insert one end of the other test line 9 into the electrode socket 7 connected to the negative pole of the DC power supply, and connect the other end to the power supply N line, and insert a test line 3 end into the test connected to the positive terminal of the changeover switch lb.
  • the other end is connected to the voltage terminal of the metering device junction box A, and one end of the other test line 2 is inserted into the test socket 5 connected to the negative end of the changeover switch lb, and the other end is connected to the metering device junction box.
  • N phase terminal button press the switch, observe that the liquid crystal display la indicates the voltage of about 9V, then the voltage circuit of the component A of the energy metering device is correctly wired.
  • the measurement methods of the B and C components are the same as those of the A component.
  • the multi-function electric energy metering device wiring detector provided by the invention can also perform the following measurements on the electric energy metering device: three-phase three-wire high-voltage electric energy metering device, current loop, voltage loop measurement, current transformer, voltage transformer pole Sex.
  • the measurement principle is the same as that of the above-mentioned three-phase four-wire low-voltage energy metering device for current and voltage loops.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Description

多功能电能计量装置接线检测仪
技术领域 本发明涉及电器检测领域，具体地说是一种多功能电能计量装置接线检测 仪。
背景技术
电能计量装置包括有电能表、 电流互感器、 电压互感器、 二次线及连接端 子等。 对于电能计量装置来说， 如果出现电流、 电压互感器极性不正确、 或电 压互感器一次保险熔断、 或二次连接导线松动、 或接线差错等现象， 都将影响 电能计量装置的正确计量。对于某些电量艮大的大用户，往往一线之差就会出 现几千乃至几百万千瓦时电量的计量误差，从而造成计量纠纷， 并给供电企业 带来经济损失。 为了保证电能计量装置的正确计量， 需做电流互感器、 电压互 感器极性试验、 二次接线导通和接线端子标示核对、 电能表的接线检查等， 目 前， 上述工作的实施均采用传统的查线方法，传统的查线方法不仅需要携带很 多设备， 而且由于计量拒或计量箱内空间小， 中间转换较多， 给电能计量装置 测试和拆接线检查带来了困难， 不但浪费时间， 而且工作效率低， 准确性难以 保证。 现有的相位伏安表则无法解决上述问题。
发明内容
本发明的目的在于提供一种多功能电能计量装置接线检测仪，它即具备相 位伏安表的功能，又能快速的对电能计量装置计量回路的接线进行检查、判断。
为实现上述目的，本发明采用以下方案：多功能电能计量装置接线检测仪， 它包括有一相位伏安表，在表壳内装有直流电源，表壳上设置有一对测试插座 和一对电极插座， 直流电源的一极与一电极插座相接、 另一极通过开关与另一 电极插座相接， 开关固定在表壳上， 两测试插座分别与相位伏安表的转换开关 的两端相接； 该接线检测仪还配备有与各测试插座、 电极插座配套的测试线。
由上述方案可见，本发明提供的多功能电能计量装置接线检测仪具备相位 伏安表功能， 当需要由其对电能计量回路进行检查、判断时，将与各测试插座、 电极插座配套的测试线接在所对应的插座上，即可利用相位伏安表对电能计量 回路进行检查、 判断。
本发明结构合理、 可靠， 它可大大筒化电能计量装置测试和拆接线检查的 过程， 且检查、 判断准确。
附图说明 图 1 本发明中实施例一的结构示意图；
图 2 图 1的 A向视图；
图 3 图 2中直流电源与电极插座连接的电路图；
图 4 图 1中测试插座与相位伏安表的转换开关相接的示意图；
图 5 本发明使用实例二的示意图。
具体实施方式 以下结合实施例及附图进一步说明本发明。
参见图 1、 图 2、 图 3、 图 4
本发明提供的多功能电能计量装置接线检测仪包括有一与现有产品相同 的相位伏安表 1 , 在表壳内装有直流电源 11 , 表壳上设置有一对测试插座， 即 测试插座 4和测试插座 5, 表壳上还设置有一对电极插座， 即电极插座 6和电 极插座 7 , 直流电源 11的负极与一电极插座 7相接、 正极通过开关 10与另一 电极插座 6相接， 开关 10固定在表壳上。 测试插座 4、 测试插座 5分别与相 位伏安表的转换开关 lb的两端相接，其中一测试插座 4与转换开关 lb的正极 端相接， 另一测试插座 5与转换开关 lb的负极端相接。 另外， 该接线检测仪 还配备有分别与各测试插座、 电极插座配套的测试线 2、 测试线 3、 测试线 4、 测试线 5。 开关 10为常开触动开关。 直流电源 11为电压是 9伏的蓄电池。
参见图 1
本使用实例为对三相四线低压电能计量装置电流回路的测量， 具体地测量 方法为：
A组元件测量， 将转换转开关 lb旋至 0.05mA档位， 将一测试线 8的一 端插至一与直流电源正极相接的电极插座 6内、 另一端接 A相电流互感器一 次电源侧， 将另一测试线 9的一端插至与直流电源负极相接的电极插座 7内、 另一端接 A相电流互感器一次负载侧， 将一测试线 3—端插至与换转开关 lb 正极端相接的测试插座 4内、 另一端接计量装置接线盒 A相电流进线端钮， 将另一测试线 2的一端插至与换转开关 lb负极端相接的测试插座 5内、 另一 端接计量装置接线盒 A相电流出线与端钮断开的线， 按下开关 10的瞬间， 测 试线 2、 3将测得信号通过相位伏安表的转换开关、 测量电路和变换器， 输入 至相位伏安表的液晶显示屏 la, 观察液晶显示屏 la, 其上所显示测得的瞬时 感应电流方向与所测 A相电流互感器电流正确的流向相同， 则 A相电流回路 接线正确，反之则说明 A相电流回路接线错误。 同样 B、 C组元件测量方法与 A组元件测量相同。
参见图 5
本使用实例为对三相四线低压电能计量装置电压回路的测量， 具体地测量 方法为：
A组元件测量， 将转换转开关 lb旋至直流 10V档位， 将一测试线 8的一端 插至一与直流电源正极相接的电极插座 6内、 另一端接 A相电流互感器一次 电源侧，将另一测试线 9的一端插至与直流电源负极相接的电极插座 7内、 另 一端接电源 N线， 将一测试线 3—端插至与换转开关 lb正极端相接的测试插 座 4内、 另一端接接计量装置接线盒 A相电压端钮， 将另一测试线 2的一端 插至与换转开关 lb负极端相接的测试插座 5内、 另一端接计量装置接线盒 N 相端钮，按下开关， 观察液晶显示屏 la指示 9V左右电压， 则电能计量装置 A 组元件电压回路接线正确。同样， B、 C组元件测量方法与 A组元件测量相同。
另夕卜，本发明提供的多功能电能计量装置接线检测仪还可对电能计量装置 进行以下测量： 三项三线高压电能计量装置电流回路、 电压回路的测量， 电流 互感器、 电压互感器的极性。其测量原理与上述三相四线低压电能计量装置电 流、 电压回路的测量原理相同。

Claims

权 利 要 求
1、 多功能电能计量装置接线检测仪， 它包括有一相位伏安表， 其特征在于： 在表壳内装有直流电源，表壳上设置有一对测试插座和一对电极插座， 直流电 源的一极与一电极插座相接、 另一极通过开关与另一电极插座相接， 开关固定 在表壳上， 两测试插座分别与相位伏安表的转换开关的两端相接； 该接线检测 仪还配备有与各测试插座、 电极插座配套的测试线。
2、 根据权利要求 1所述的多功能电能计量装置接线检测仪， 其特征在于： 所述的开关为常开触动开关。
3、 根据权利要求 1所述的多功能电能计量装置接线检测仪， 其特征在于： 所述的直流电源为电压是 9伏的蓄电池。
PCT/CN2011/083167 2011-01-20 2011-11-29 多功能电能计量装置接线检测仪 WO2012097648A1 (zh)

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CA2784338A CA2784338A1 (en) 2011-01-20 2011-11-29 Wiring tester of multifunctional electric energy metering device

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